Flex converts string to boolean

The value is determined based on the true and false values configured in the configuration file in the.

 "false" as Boolean //flase"true" as Boolean //falseBoolean("flase") //trueBoolean("true")//true 

"False" as Boolean is flase

Is a string, not a boolean type, so it is false

Boolean ("flase") is true

Determines whether a string is empty without looking at the content.

Obviously, this is not an empty string

SetexpressionConvert the parameter to a Boolean value and return this value.

The returned value depends on the data type and value of the parameter, as described in the following table:

Input value	Example	Return Value
0	Boolean(0)	false
NaN	Boolean(NaN)	false
Number (non0OrNaN)	Boolean(4)	true
Null String	Boolean("")	false
Non-Null String	Boolean("6")	true
null	Boolean(null)	false
undefined	Boolean(undefined)	false
Object class instance	Boolean(new Object())	true
No Parameter	Boolean()	false

Because you do not want to write the if statement

Boolean(Number("0"));//falseBoolean(Number("1"));//true

But this is not intuitive.

If you want to determine whether there are only

If (STR = "true ")

There are many small problems with new technologies, so I will explore and learn more slowly.